Around 2:40 a.m., a man in a green T-shirt walked into the Marathon gas station, at 2605 N 50th St., and asked the clerk to help him with the store's coffee machine, police said.

As the clerk was attending to the first man, a second suspect came into the store and pointed a silver revolver at the clerk, demanding money.

The clerk refused, and police said the second man shot him in the left shoulder.

Police said he tried to fire a second time, but the gun apparently malfunctioned, and both men ran away.

The 60-year-old clerk was treated at Tampa General Hospital and released.

The first suspect is described as a a black male, 5 feet 10 tall, about 150 pounds with black hair and brown eyes. He was wearing a White Sox cap, green Ecko T-shirt with a rhino logo on the front, baggy tan shorts and white sneakers.

Police said the man who shot the clerk is a black male between 5 feet 10 and 6 feet tall and between 160 and 180 pounds. He was wearing a black ski cap, blue-and-white bandana, dark gray jacket, long, black T-shirt and dark jeans.